@article{00874328, title = {Two criteria for univalency.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {19}, year = {1996}, pages = {409-410}, doi = {10.1155/S0161171296000579}, zbl = {0905.30014}, language = {en}, url = {http://dml.mathdoc.fr/item/00874328} }
Samaris, N. Two criteria for univalency.. International Journal of Mathematics and Mathematical Sciences, Tome 19 (1996) pp. 409-410. doi : 10.1155/S0161171296000579. http://gdmltest.u-ga.fr/item/00874328/